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| 型号： | MAX9777ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 22/27页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 2.6W AB 28TQFN |
| 标准包装： | 2,500 |
| 类型： | AB 类 |
| 输出类型： | 2-通道（立体声）带立体声耳机 |
| 在某负载时最大输出功率 x 通道数量： | 2.6W x 2 @ 4 欧姆; 200mW x 2 @ 16 欧姆 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 特点： | 消除爆音，I²C，输入多路复用器，静音，关机，热保护 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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MAX9777/MAX9778
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
4
_
__
_
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = 5.0V, GND = PGND = 0V, VSHDN = 5V, CBIAS = 1F, RIN = RF = 15k, RL = ∞. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2-WIRE SERIAL INTERFACE (SCL, SDA, ADD,
INT) (MAX9777)
Input-Voltage High
VIH
2.6
V
Input-Voltage Low
VIL
0.8
V
Input Hysteresis
0.2
V
Input High Leakage Current
IIH
VIN = 5V
±1A
Input Low Leakage Current
IIL
VIN = 0V
±1A
Input Capacitance
CIN
10
pF
Output-Voltage Low
VOL
IOL = 3mA
0.4
V
Output Current High
IOH
VOH = 5V
1
A
TIMING CHARACTERISTICS (MAX9777)
Serial Clock Frequency
fSCL
400
kHz
Bus Free Time Between STOP
and START Conditions
tBUF
1.3
s
START Condition Hold Time
tHD:STA
0.6
s
START Condition Setup Time
tSU:STA
0.6
s
Clock Period Low
tLOW
1.3
s
Clock Period High
tHIGH
0.6
s
Data Setup Time
tSU:DAT
100
ns
Data Hold Time
tHD:DAT
(Note 3)
0
0.9
s
Receive SCL/SDA Rise Time
tr
(Note 4)
20 +
0.1CB
300
ns
Receive SCL/SDA Fall Time
tf
(Note 4)
20 +
0.1CB
300
ns
Transmit SDA Fall Time
tf
(Note 4)
20 +
0.1CB
250
ns
Pulse Width of Suppressed
Spike
tSP
(Note 5)
50
ns
Note 1: All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.
Note 2: Inputs AC-coupled to GND.
Note 3: A master device must provide a hold time of at least 300ns for the SDA signal to bridge the undefined region of SCL’s
falling edge.
Note 4: CB = total capacitance of one of the bus lines in picofarads. Device tested with CB = 400pF. 1k pullup resistors connected
from SDA/SCL to VDD.
Note 5: Input filters on SDA, SCL, and ADD suppress noise spikes of less than 50ns.
Note 6: Headphone mode testing performed with 32 resistive load connected to GND. Speaker mode testing performed with 8
resistive load connected to GND. Mode transitions are controlled by SHDN. KCP level is calculated as 20log[(peak voltage
during mode transition, no input signal)/1VRMS]. Units are expressed in dBV.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9778ETI+ | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9778ETI+T | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9779ETI+ | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9779ETI+T | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX977EEE | 功能描述:校验器 IC 3V/5V Dual-Speed Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
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